. "In FIG. B M is Cu, Zn, SiCl2, or 2H; Q is N or C(X), where X is a substituted or unsubstituted alkyl or aryl group; and T1 /T2 is H, trichlorosilyl, trialkoxysilyl, or a moiety having 1 to 6 carbon atoms which can include trichlorosilyl or trialkoxysilyl groups." . . .